IMHO - - -> As a general rule a bullet of the more common makeup will not come apart after leaving the bbl no matter the (within reason) rotational velocity AS LONG AS it does not hit anything on the way to the target.
I have blown up 40gr NosBalTips by hitting a single blade of grass coming out of my 220Swift at >4000fps but not at 3850fps.
I do not know of a single 35 or 40 gr that will come apart at 223AI vels from a 1:7 twist bbl. Or a single 50gr that will come apart out of a 1:10 twist 22-250 bbl.
I do believe however that the condition of the inner bbl can do so much damage to a bullet and that will heavily contribute to the bullets integrity in flight.
Also remember that the forward velocity of a bullet slows down quite rapidly but the rotational velocity slows down very little. Even at the extended ranges.
But if you have concernes about a bullets integrity,simply choose a all copper bullet like the Barnes TSX/TTSX and Hornady GMX. ---- SAWMAN